package com.atguigu.gulimall.auth.controller;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.AuthServerConstant;
import com.atguigu.common.utils.HttpUtils;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.auth.feign.MemberFeignService;
import com.atguigu.common.vo.MemberResponseVo;
import com.atguigu.gulimall.auth.vo.SocialUser;
import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpResponse;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.util.HashMap;
import java.util.Map;

/**
 * Copyright (c) 2019-2029 星大陆 All Rights Reserved
 * <p>
 * Project: gulimall
 * Package: com.atguigu.auth.controller
 * Version: V 1.0
 * <p> 社交登录成功回调
 * Created by guoxiaolong on 2020/08/08 6:09
 */
@Slf4j
@Controller
public class OAuth2Controller {

    @Autowired
    MemberFeignService memberFeignService;

    @GetMapping("/oauth2.0/weibo/success")
    public String weibo(@RequestParam("code") String code, HttpSession session, HttpServletResponse servletResponse, HttpServletRequest request) throws Exception {
        Map<String, String> header = new HashMap<>();
        Map<String, String> query = new HashMap<>();

        Map<String, String> map = new HashMap<>();
        map.put("client_id", "3231253688");
        map.put("client_secret", "2559595fdf51cd6ff6533f8cc28a2758");
        map.put("grant_type", "authorization_code");
        map.put("redirect_uri", "http://gulimall.com/oauth2.0/weibo/success");
        map.put("code", code);

        //1、根据 code 换取 accessToken
        HttpResponse response = HttpUtils.doPost("https://api.weibo.com", "/oauth2/access_token", "post", header, query, map);

        //2、处理
        if (response.getStatusLine().getStatusCode() == 200) {
            //获取到了 accessToken
            String json = EntityUtils.toString(response.getEntity());
            SocialUser socialUser = JSON.parseObject(json, SocialUser.class);

            //知道当前是哪个社交用户
            //1）、当前用户如果是第一次进网站，自动注册进来（为当前社交用户生成一个会员信息账号，以后这个社交账号就对应指定的会员
            // 登录或者注册这个用户
            R oauthlogin = memberFeignService.oauthlogin(socialUser);
            if (oauthlogin.getCode() == 0) {

                MemberResponseVo data = oauthlogin.getData(new TypeReference<MemberResponseVo>() {
                });
                log.info("登陆成功,用户：{}", data.toString());
                //1、第一次使用 session；命令浏览器保存卡号，JSESSIONID 这个 cookie；
                //以后浏览器访问那个网站就会带上这个网站的 cookie；
                //子域之间； gulimall.com    auth.gulimall.com   order.gulimall.com
                //发卡的时候(指定域名为父域名)，即使是子域系统发的卡，也能让父域直接使用。
                //TODO 1、默认发的令牌。session=dsajkdjl。作用域：当前域； (解决子域 session共享)
                //TODO 2、使用 JSON 的序列化方式来序列化对象数据到 redis
                session.setAttribute(AuthServerConstant.LOGIN_USER, data);
                //new Cookie("JSESSIONID","dada").setDomain()
                //servletResponse.addCookie();
                //2、登录成功就跳转首页
                return "redirect:http://gulimall.com";
            } else {
                return "redirect:http://auth.gulimall.com/login.html";
            }
        } else {
            return "redirect:http://auth.gulimall.com/login.html";
        }
    }
}

